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Related Concept Videos

Peptide Identification Using Tandem Mass Spectrometry01:33

Peptide Identification Using Tandem Mass Spectrometry

Tandem mass spectrometry, also known as MS/MS or MS2, is an analytical technique that employs two mass analyzers. Essentially it is a series of mass spectrometers that helps isolate a particular biomolecule and then helps study its chemical properties.
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...

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Integrated Cell Manipulation Platform Coupled with the Single-probe for Mass Spectrometry Analysis of Drugs and Metabolites in Single Suspension Cells
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Profiling metabolites and peptides in single cells.

Stanislav S Rubakhin1, Elena V Romanova, Peter Nemes

  • 1Department of Chemistry and the Beckman Institute, University of Illinois at Urbana-Champaign, Urbana-Champaign, Illinois, USA.

Nature Methods
|April 1, 2011
PubMed
Summary

Characterizing single-cell metabolomes and peptidomes reveals cellular states and dynamics. Advanced bioanalytical microanalysis aids understanding of cell fate and heterogeneity in key biological fields.

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Sample Preparation for Single Cell Mass Spectrometry Metabolomics Studies: Combined Cell Washing, Quenching, Drying, and Storage

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Area of Science:

  • Biochemistry
  • Cell Biology
  • Analytical Chemistry

Background:

  • Intracellular metabolites and peptides indicate cellular state and environmental interactions.
  • Their levels and dynamics are crucial biomarkers for normal and pathological cellular conditions.

Purpose of the Study:

  • To review established and emerging methods for single-cell metabolome and peptidome characterization.
  • To emphasize the importance of single-cell analysis for understanding cell fate, function, and homeostasis.

Main Methods:

  • Highlighting established and evolving strategies for single-cell metabolome and peptidome analysis.
  • Utilizing bioanalytical microanalysis techniques for detailed cellular composition studies.

Main Results:

  • Single-cell analysis provides insights into cellular heterogeneity.
  • Characterizing the metabolome and peptidome of individual cells offers a deeper understanding of cellular processes.

Conclusions:

  • Focused studies on single-cell chemical composition enhance understanding of cell fate and homeostatic balance.
  • Single-cell bioanalytical microanalysis is vital for fields like neuroscience, stem cell biology, and developmental biology.